Old World Pfeffernusse Cookies

• 1 egg
• 400 gr all purpose flour
• 120 ml molasses
• 170 gr packed brown sugar
• 110 gr butter
• 16 ml licorice-flavored liqueur
• 5 gr baking soda
• 3 gr cinnamon (ground)
• 1 gr nutmeg (ground)
• 1 gr pepper